Thanks Wolverin 7 for your in depth prescription. I will check them all and post the result here. although starting everything from scratch is a little bit frustrating for me :*(

Dude I know, I've seen this topic still no help. Its kinda strange, having this problem on this laptop!

any help guys ?

Hi there,
I bought Lenovo Y5070 laptop recently with these specs: Intel Corei7 4720, 16 gig Ram, Geforce GTX 960m 4 Gig DDR5, and the second graphic card of intel 4600.
I installed windows 10 on...